Efficient photocurrent generation through a self-assembled monolayer of C60-mercaptophenylanthrylacetylene
| Autor: | Hong Ma, Seok Ho Kang, Alex K.-Y. Jen, Kyoung-Soo Kim, Mun-Sik Kang |
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| Rok vydání: | 2006 |
| Předmět: |
Photocurrent
Auxiliary electrode Working electrode Renewable Energy Sustainability and the Environment Chemistry Analytical chemistry Energy Engineering and Power Technology Self-assembled monolayer Photoelectrochemical cell Photochemistry Monolayer Electrode Electrical and Electronic Engineering Physical and Theoretical Chemistry Cyclic voltammetry |
| Zdroj: | Journal of Power Sources. 160:711-715 |
| ISSN: | 0378-7753 |
| Popis: | A novel conjugated molecule, C 60 -mercaptophenylanthrylacetylene (C 60 -MPAA) has been self-assembled on a gold surface to form a highly ordered monolayer. The electrochemical properties of this molecule in solution or in a self-assembled monolayer (SAM) were investigated using cyclic voltammetry. A stable cathodic photocurrent was observed from a photoelectrochemical cell using the C 60 -MPAA SAM modified gold as the working electrode in the presence of methyl viologen (MV 2+ ) as electron carrier. The quantum yield (14%) of the cell was obtained at a bias of −100 mV versus Ag/AgCl under the illumination of monochromatic light at 400 nm. The dependence of photocurrent on the potential bias applied to the self-assembled monolayer modified Au electrode indicated that electron flow from C 60 -MPAA to the counter electrode through the electron carriers. |
| Databáze: | OpenAIRE |
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